LJT & Associates, Inc. (LJT) chartered in 1994, is a diversified engineering services company headquartered in Montgomery, Alabama.

LJT is a Small Disadvantaged, Veteran-Owned Business certified by the U.S. Small Business Administration.

LJT holds a Top Secret Facility Clearance, with over 200 employees and 19 locations nationwide, providing system engineering, sustaining engineering, launch operations support and general engineering and administrative support to the National Aeronautics and Space Administration (NASA), Air Force, Navy, Defense Information Systems Agency (DISA), Internal Revenue Service (IRS), and the National Science Foundation (NSF).